Each nymphal stage is larger than the previous one, and an adult cockroach emerges after the last nymphal stage.

Each nymphal stage is larger than the previous one, and the adult emerges after the last nymphal stage.

The transformation is incomplete when there is no differentiated nymph stage.

What about eliminating the 10% at the resistant pupal stage?

The applications are more effective when the insect is in the nymph state.

They look like some kind of insect in the nymph stage.

Insecticides should be targeted at the nymphal stage.

Because ticks in the nymph stage are often hard to detect.

The irradiated pups (nymphal stage) come from Bobo-Dioulasso (Burkina Faso).

The nymphal stage will have lasted in this case 9 days only

All the growing happens during the larval or nymphal stages.

The transformation is incomplete when there is no differentiated nymph stage.

The first nymphal stage is a transparent white colour and about 0.1 mm long.

The brownish chrysalis normally has 45° orientation with respect to the pupation substrate.

The morphogenetic effect is seen principally during the larva-pupal or nymphal-adult transformation.